US5054534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window shade with dual blinds
Assignee: Individual
•
Filing: 1991-02-06
•
Granted: 1991-10-08
•
Expires: 2011-02-06
Abstract
Abstract A window shade with dual blinds comprises a headrail, a bottom rail, dual blinds arranged in parallel between the head rail and the bottom rail to form an interspace, draw lock for positioning the bottom rail, and a draw cord for lifting and lowering the bottom rail. Each of dual blinds has a plurality of string holes arranged therein at noncorresponding positions so as to obstruct one another.
Inventors
- 👤 Amy Hong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:10
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/262; E06B2009/2423; E06B2009/2447; E06B2009/2452; E06B2009/2458; E06B2009/2625
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A window shade with dual blinds comprising: (a) a headrail; (b) a bottom rail; (c) dual blinds each having a length and a width arranged in parallel between said headrail and said bottom rail and being substantially coextensive so as to form an interspace located therebetween, each of said dual blinds having string holes arranged therein at offset noncorresponding positions along the width thereof to obstruct one another; (d) means of positioning said bottom rail, wherein positioning means includes a draw lock; and (e) means for lifting and lowering said bottom rail, wherein said lifting and lowering means includes a draw cord.
Claim 2
Dependent Claim
102 words
A window shade with dual blinds comprising: (a) a headrail; (b) a bottom rail; (c) dual blinds each having a length and a width arranged in parallel between said headrail and said bottom rail and being substantially coextensive so as to form an interspace located therebetween, each of said dual blinds having string holes arranged therein at offset noncorresponding positions along the width thereof to obstruct one another; (d) means of positioning said bottom rail, wherein positioning means includes a draw lock; and (e) means for lifting and lowering said bottom rail, wherein said lifting and lowering means includes a draw cord.
References Cited (Backward Citations)
US3946788A
Cited
US4687039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |